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v8.1.1: Turn off hash agg spill by default (#18338)
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xzhangxian1008 authored Aug 27, 2024
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Expand Up @@ -2185,7 +2185,7 @@ mysql> SELECT job_info FROM mysql.analyze_jobs ORDER BY end_time DESC LIMIT 1;
- 是否持久化到集群:是
- 是否受 Hint [SET_VAR](/optimizer-hints.md#set_varvar_namevar_value) 控制:否
- 类型:布尔型
- 默认值:`ON`
- 默认值:v8.1.0 中为 `ON`,在 v8.1.1 及后续的 8.1 补丁版本中为 `OFF`
- 这个变量用来控制 TiDB 是否支持并行 HashAgg 进行落盘。当该变量设置为 `ON` 时,并行 HashAgg 将支持落盘。该变量将在功能正式发布后废弃。

### `tidb_enable_pipelined_window_function`
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